#define BSON_APPEND_SYMBOL(b, key, val) \

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                             BSON_APPEND_SYMBOL(3)

       Appends a new field to bson of type BSON_TYPE_SYMBOL. This BSON type is deprecated and should not be used
       in new code.

       Due to legacy behavior, passing NULL for value appends a null value, not a symbol value. To append a null
       value directly, prefer using bson_append_null().

       • bson: A bson_t.

       • key: An ASCII C string containing the name of the field.

       • key_length: The length of key in bytes, or -1 to determine the length with strlen().

       • value: The symbol.

       • length: A length of symbol in bytes, or -1 to determine the length with strlen().

       Returns  true  if  the  operation was applied successfully. The function will fail if appending the value
       grows bson larger than INT32_MAX.

          #define BSON_APPEND_SYMBOL(b, key, val) \
             bson_append_symbol (b, key, (int) strlen (key), val, (int) strlen (val))

          bool
          bson_append_symbol (bson_t *bson,
                              const char *key,
                              int key_length,
                              const char *value,
                              int length);